28345037318416 has 160 divisors (see below), whose sum is σ = 68548980584448. Its totient is φ = 11055621173760.

The previous prime is 28345037318371. The next prime is 28345037318453. The reversal of 28345037318416 is 61481373054382.

It is a super-2 number, since 2×28345037318416² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33626421 + ... + 34459051.

Almost surely, 2^{28345037318416} is an apocalyptic number.

28345037318416 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28345037318416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34274490292224).

28345037318416 is an abundant number, since it is smaller than the sum of its proper divisors (40203943266032).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28345037318416 is a wasteful number, since it uses less digits than its factorization.

28345037318416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 832989 (or 832983 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 55.

The spelling of 28345037318416 in words is "twenty-eight trillion, three hundred forty-five billion, thirty-seven million, three hundred eighteen thousand, four hundred sixteen".